Patent Assignment
Reel/Frame 006462/0472
Assignment of Assignors Interest.
Recorded: 1993-03-17
Pages: 2
Assignor
CIBA-GEIGY AG
Executed: 1993-02-19
Assignee
PAUL RYS
IN DER IOOREN 51 8053, ZURICH, SWITZERLAND
Covered Properties
(2)
Process for the Production of Polycrystalline Silicon Coatings by Electrolytic Deposition of Silicon-
Patent:
4,759,830 →
Application:
07/087,635 →
Process for the Production of Polycrystalline Silicon Coatings by Electrolytic Deposition of Silicon
Patent:
4,773,973 →
Application:
07/165,492 →
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Apr 29, 1988
From: GRUNIGER, HANS R.; KERN, RUDOLF; RYS, PAUL
To: CIBA-GEIGY AG, A COMPANY OF SWISS
Reel/Frame 004860/0880 →
Assignment of Assignors Interest.
Sep 18, 1990
From: CIBA-GEIGY AG, A CORP. OF SWITZERLAND
To: H.A. WHITTEN & CO.
Reel/Frame 005454/0161 →
Assignment of Assignors Interest.
Sep 2, 1992
From: H.A. WHITTEN & CO.
To: CIBA-GEIGY AG
Reel/Frame 006276/0171 →